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Flyte native scheduler (flyteorg#228)
* Flyte native scheduler Signed-off-by: Prafulla Mahindrakar <[email protected]> Co-authored-by: Yuvraj <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,36 @@ | ||
| # WARNING: THIS FILE IS MANAGED IN THE 'BOILERPLATE' REPO AND COPIED TO OTHER REPOSITORIES. | ||
| # ONLY EDIT THIS FILE FROM WITHIN THE 'LYFT/BOILERPLATE' REPOSITORY: | ||
| # | ||
| # TO OPT OUT OF UPDATES, SEE https://github.com/lyft/boilerplate/blob/master/Readme.rst | ||
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| FROM golang:1.16.0-alpine3.13 as builder | ||
| RUN apk add git openssh-client make curl | ||
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| # COPY only the go mod files for efficient caching | ||
| COPY go.mod go.sum /go/src/github.com/flyteorg/flyteadmin/ | ||
| WORKDIR /go/src/github.com/flyteorg/flyteadmin | ||
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| # Pull dependencies | ||
| RUN go mod download | ||
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| # COPY the rest of the source code | ||
| COPY . /go/src/github.com/flyteorg/flyteadmin/ | ||
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| # This 'linux_compile_scheduler' target should compile binaries to the /artifacts directory | ||
| # The main entrypoint should be compiled to /artifacts/flytescheduler | ||
| RUN make linux_compile_scheduler | ||
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| # update the PATH to include the /artifacts directory | ||
| ENV PATH="/artifacts:${PATH}" | ||
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| # This will eventually move to centurylink/ca-certs:latest for minimum possible image size | ||
| FROM alpine:3.13 | ||
| LABEL org.opencontainers.image.source https://github.com/flyteorg/flyteadmin | ||
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| COPY --from=builder /artifacts /bin | ||
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| # Ensure the latest CA certs are present to authenticate SSL connections. | ||
| RUN apk --update add ca-certificates | ||
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| CMD ["flytescheduler"] | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| package entrypoints | ||
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| import ( | ||
| "context" | ||
| "flag" | ||
| "fmt" | ||
| "os" | ||
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| "github.com/flyteorg/flytestdlib/config" | ||
| "github.com/flyteorg/flytestdlib/config/viper" | ||
| "github.com/spf13/cobra" | ||
| "github.com/spf13/pflag" | ||
| ) | ||
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| var ( | ||
| cfgFile string | ||
| configAccessor = viper.NewAccessor(config.Options{}) | ||
| ) | ||
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| // RootCmd represents the base command when called without any subcommands | ||
| var RootCmd = &cobra.Command{ | ||
| Use: "flytescheduler", | ||
| Short: "Flyte native scheduler to run cron and fixed rate scheduled workflows", | ||
| Long: ` | ||
| Use the run subcommand which will start the scheduler by connecting to DB containing schedules | ||
| flytescheduler run --config flyteadmin_config.yaml --admin.endpoint dns:///localhost:8089 --admin.insecure | ||
| `, | ||
| PersistentPreRunE: func(cmd *cobra.Command, args []string) error { | ||
| return initConfig(cmd.Flags()) | ||
| }, | ||
| } | ||
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| // Execute adds all child commands to the root command sets flags appropriately. | ||
| // This is called by main.main(). It only needs to happen once to the rootCmd. | ||
| func Execute() error { | ||
| if err := RootCmd.Execute(); err != nil { | ||
| fmt.Println(err) | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
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| func init() { | ||
| // allows `$ flytescheduler --logtostderr` to work | ||
| pflag.CommandLine.AddGoFlagSet(flag.CommandLine) | ||
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| // Add persistent flags - persistent flags persist through all sub-commands | ||
| RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is ./flyteadmin_config.yaml)") | ||
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| RootCmd.AddCommand(viper.GetConfigCommand()) | ||
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| // Allow viper to read the value of the flags | ||
| configAccessor.InitializePflags(RootCmd.PersistentFlags()) | ||
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| err := flag.CommandLine.Parse([]string{}) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(-1) | ||
| } | ||
| } | ||
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| func initConfig(flags *pflag.FlagSet) error { | ||
| configAccessor = viper.NewAccessor(config.Options{ | ||
| SearchPaths: []string{cfgFile, ".", "/etc/flyte/config", "$GOPATH/src/github.com/flyteorg/flyteadmin"}, | ||
| StrictMode: false, | ||
| }) | ||
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| fmt.Println("Using config file: ", configAccessor.ConfigFilesUsed()) | ||
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| configAccessor.InitializePflags(flags) | ||
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| return configAccessor.UpdateConfig(context.TODO()) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| package entrypoints | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "runtime/debug" | ||
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| "github.com/flyteorg/flyteadmin/pkg/common" | ||
| repositoryCommonConfig "github.com/flyteorg/flyteadmin/pkg/repositories/config" | ||
| "github.com/flyteorg/flyteadmin/pkg/runtime" | ||
| scheduler "github.com/flyteorg/flyteadmin/scheduler" | ||
| schdulerRepoConfig "github.com/flyteorg/flyteadmin/scheduler/repositories" | ||
| "github.com/flyteorg/flyteidl/clients/go/admin" | ||
| "github.com/flyteorg/flytestdlib/contextutils" | ||
| "github.com/flyteorg/flytestdlib/logger" | ||
| "github.com/flyteorg/flytestdlib/promutils" | ||
| "github.com/flyteorg/flytestdlib/promutils/labeled" | ||
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| _ "github.com/jinzhu/gorm/dialects/postgres" // Required to import database driver. | ||
| "github.com/spf13/cobra" | ||
| ) | ||
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| var schedulerRunCmd = &cobra.Command{ | ||
| Use: "run", | ||
| Short: "This command will start the flyte native scheduler and periodically get new schedules from the db for scheduling", | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| ctx := context.Background() | ||
| configuration := runtime.NewConfigurationProvider() | ||
| applicationConfiguration := configuration.ApplicationConfiguration().GetTopLevelConfig() | ||
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| // Define the schedulerScope for prometheus metrics | ||
| schedulerScope := promutils.NewScope(applicationConfiguration.MetricsScope).NewSubScope("flytescheduler") | ||
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| defer func() { | ||
| if err := recover(); err != nil { | ||
| schedulerScope.MustNewCounter("initialization_panic", | ||
| "panics encountered initializing the flyte native scheduler").Inc() | ||
| logger.Fatalf(ctx, fmt.Sprintf("caught panic: %v [%+v]", err, string(debug.Stack()))) | ||
| } | ||
| }() | ||
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| dbConfigValues := configuration.ApplicationConfiguration().GetDbConfig() | ||
| dbConfig := repositoryCommonConfig.NewDbConfig(dbConfigValues) | ||
| db := schdulerRepoConfig.GetRepository( | ||
| schdulerRepoConfig.POSTGRES, dbConfig, schedulerScope.NewSubScope("database")) | ||
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| clientSet, err := admin.ClientSetBuilder().WithConfig(admin.GetConfig(ctx)).Build(ctx) | ||
| if err != nil { | ||
| logger.Fatalf(ctx, "Flyte native scheduler failed to start due to %v", err) | ||
| return err | ||
| } | ||
| adminServiceClient := clientSet.AdminClient() | ||
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| scheduleExecutor := scheduler.NewScheduledExecutor(db, | ||
| configuration.ApplicationConfiguration().GetSchedulerConfig().GetWorkflowExecutorConfig(), schedulerScope, adminServiceClient) | ||
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| logger.Info(context.Background(), "Successfully initialized a native flyte scheduler") | ||
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| err = scheduleExecutor.Run(ctx) | ||
| if err != nil { | ||
| logger.Fatalf(ctx, "Flyte native scheduler failed to start due to %v", err) | ||
| return err | ||
| } | ||
| return nil | ||
| }, | ||
| } | ||
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| func init() { | ||
| RootCmd.AddCommand(schedulerRunCmd) | ||
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| // Set Keys | ||
| labeled.SetMetricKeys(contextutils.AppNameKey, contextutils.ProjectKey, contextutils.DomainKey, | ||
| contextutils.ExecIDKey, contextutils.WorkflowIDKey, contextutils.NodeIDKey, contextutils.TaskIDKey, | ||
| contextutils.TaskTypeKey, common.RuntimeTypeKey, common.RuntimeVersionKey) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| package main | ||
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| import ( | ||
| entrypoints2 "github.com/flyteorg/flyteadmin/cmd/scheduler/entrypoints" | ||
| "github.com/golang/glog" | ||
| ) | ||
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| func main() { | ||
| glog.V(2).Info("Beginning Flyte Scheduler") | ||
| err := entrypoints2.Execute() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } |
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